4-Ingredient Slow Cooker Brisket with Onions

by Dorothy Reinhold on September 26, 2021

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4-Ingredient Slow Cooker Brisket with Onions: Meltingly tender beef brisket braises easily in the slow cooker, marrying onions and garlic for simple, sublime comfort food. Whether for Hanukkah, another holiday or just any night when you want a comforting dinner, itโ€™s hard to beat brisket.

Cooked low and slow, brisket will reward you with deep, beefy deliciousness, a meltingly tender meal that defines dinner.

Haul out the slow cooker to make it easy, and you’ll only need a couple of ingredients beyond the beef itself. No need to cover up perfection with a lot of fripperies.

Cooked beef brisket atop a pile of cooked onions sits on a white platter on a wooden table, with carving utensils alongside is easiest, simplest, meltingly tender, for comfort food dinners | ShockinglyDelicious.comIt’s beef’s beef. You want it.

What to serve with 4-Ingredient Slow Cooker Brisket?

Mix and match to make a colorful plate, and choose your favorites!

Vegetables: cooked carrots, sliced fresh tomatoes, roasted red peppers
Green vegetables: Salad, steamed or roasted broccoli, green beans, green peas, asparagus 
Carbs: Baked potato or sweet potato, mashed potatoes, Crispy Smashers, polenta, cooked rice or quinoa, roasted squash

4-Ingredient Slow Cooker Brisket with Onions

Prep Time: 5 minutes

Cook Time: 6 hours

Total Time: 6 hours, 20 minutes

Yield: Serves 4

4-Ingredient Slow Cooker Brisket with Onions

Meltingly tender beef brisket braises easily in the slow cooker, marrying onions and garlic for simple, sublime comfort food.


  • 1 large red onion, thinly sliced
  • 3 garlic cloves, chopped
  • 1 first cut of beef brisket (2 pounds), trimmed of excess fat
  • 2 cups low-sodium beef broth
  • Garnish: 1 tablespoon chopped fresh parsley leaves or chives, for serving


  1. In a 5- or 6-quart slow cooker, toss onion and garlic. Place brisket fat side up, in slow cooker. Pour broth over meat; it won't cover the meat. Put lid on and cook on high for about 6 hours, until brisket is fork-tender. Remove meat from cooker to a cutting board, and thinly slice against the grain.
  2. Strain onions from juice and arrange onions on a serving platter. Pour juice into a saucepot or skillet, and boil until reduced by half, about 5 minutes. (It goes faster if you have a wider surface area like a skillet.) Pour juice into a gravy boat or gravy pourer, and serve at the table.
  3. Arrange meat on top of onion bed, sprinkle with parsley or chives, for pretty, and serve. Allow diners to add their own sauce to their own plate, as they wish.
  4. Serves 4.


Note about the brisket: A whole brisket is made up of a first cut and a second cut. The first cut, also called "flat cut," is leaner. Trimming the layer of fat on the brisket down to 1/4 inch is sufficient to keep the meat moist and tender as it cooks.

Recipe source: Dorothy Reinhold | Shockingly Delicious


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4-Intredient Slow Cooker Brisket on a pile of cooked onions with parsley and chives on top, on a white serving platterShockinglyDelicious.comLooking for another brisket recipe?

3 slices of brisket topped with red sauce, on a white plate, along with small potatoes and sliced carrots on ShockinglyDelicious.comBest Brisket for Passover or any day

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This post was originally published on Shockingly Delicious Dec. 3, 2015, was updated and republished Nov. 28, 2018, and is further updated and republished today. 

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